﻿//
// (C) Copyright 2009 Irantha Suwandarathna (iranthas@hotmail.com)
// All rights reserved.
//

/* Copyright (c) 2001-2008, The HSQL Development Group
 * All rights reserved.
 *
 * Redistribution and use _in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions _in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer _in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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 */

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace EffiProz.Core
{
    /**
 * Represents a single insert / delete / rollback / commit action on a row.
 *
 * type = type of action
 * actionTimestamp = timestamp of end of SQL action; 0 if action not complete
 * commitTimestamp = timestamp of commit or rollback; 0 if not committed/rolledback
 * rolledBack = flag for rolled back actions
 * next = next action in linked list;
 *
 * timestamps are not in any order
 *
 * @author Fred Toussi (fredt@users dot sourceforge dot net)
 * @version 2.0.0
 * @since 2.0.0
 */
    public class RowActionBase
    {

        public const byte ACTION_NONE = 0;
        public const byte ACTION_INSERT = 1;
        public const byte ACTION_DELETE = 2;
        public const byte ACTION_DELETE_FINAL = 3;
        public const byte ACTION_DELETE_COMMITTED = 4;
        public const byte ACTION_DEBUG = 5;
        public RowActionBase next;
        public Session session;
        public long changeTimestamp;
        public long actionTimestamp;
        public long commitTimestamp;
        public byte type;
        public bool rolledback;
        public bool prepared;

        //
        //long tempMergeTimestamp;

        /**
         * constructor, used for delete actions only
         */
        public RowActionBase(Session session, byte type)
        {
            this.session = session;
            this.type = type;
            changeTimestamp = session.actionTimestamp;
        }

        public virtual void setAsAction(RowActionBase action)
        {

            next = action.next;
            session = action.session;
            changeTimestamp = action.changeTimestamp;
            actionTimestamp = action.actionTimestamp;
            commitTimestamp = action.commitTimestamp;
            type = action.type;
            rolledback = action.rolledback;
            prepared = action.prepared;
        }
    }
}
